Thermal printers

Details Thermal printers Thermal printers

1978-09-05

1980-05-13

Miller, Jr., George H.

Recorders

Thermal recording

219216, G01D 1510, H05B 100

Patent

active

042031192

ABSTRACT:
Each thick film resistive print element of a thermal print bar operated in a scan mode is series connected to a thick film switch which sets a voltage threshold to isolate the element from periodic scan pulses unless coincident with an element selecting data pulse in which case the thick film undergoes joule heating which causes it to switch and its series-connected resistive element undegoes joule heating.

REFERENCES:
patent: 3542697 (1970-11-01), Chamberland et al.
patent: 3599228 (1971-08-01), Coco et al.
patent: 3953708 (1976-04-01), Thornburg
patent: 4091391 (1978-05-01), Kozima et al.
patent: 4113391 (1978-09-01), Minowa

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